peters



2 Sheets-Sheet '2.

A. F. du FAUR.

Gas-Producer.

No. 225,813. Patented Mar'. 23,1880.

UNITED STATES PATENT OFFICE.

ADOLPH FABER DU FAUR, OF NEWARK, N. J., ASSIGNOR TO EDWARD COOPER AND ABRAM S. HEVVITT, OF NEW YORK, N. Y.

GAS-PRODUCER.

SPECIFICATION forming part of Letters Patent No. 225,813, dated March 23, 1880.

` Application filed October 17, 1879.

To all whom it may concern:

Be it known that I, ADOLPH FABER DU FAUR, of Newark, in the county of Essex and State of New Jersey, have invented a new and useful Improvement in Gas-Producers, which improvement is fully set forth in the following specication, reference being had to the accompanying drawings, in which- Figure l. is a vertical section in the plane of 1o the line y y, Fig. 2. Eig. 2 is a horizontal section in the plane of the linew m, Fig. 1, of a gasproducer embodying my invention. Fig. 3 is a vertical section of my producer, showing different modifications. Fig. 4 is a vertical section of a square producer constructed of fire-brick, embodying my invention, in combination with the grate of the producer known as the Tessie Gas-Producer, or substitute for a grate.

2o Similar letters indicate corresponding parts.

My invention relates to gas-producers wherein solid fuel is converted into carbonicoxide.

ln all gas producers heretofore known, whether having a horizontal or an inclined grate, or no grate at all, the hot gases in their ascent would pass toward the side walls and cause clinkers to adhere to the walls, sometimes forining arches, preventing the descent of the fuel and interrupting the operation of 3o theproducer. Thishappens particularlywhen the producer is run fastthat is to say, when it consumes a large quantity of fuel.

The object of my invention is to prevent the adhesion of clinkersl to the side walls, and

3 5 this I accomplish by feeding the fuel from all sides toward a central re, and by drawing off the gases at the center.

The producer represented in Figs. 1 and 2 iscoustructed essentially of cast-iron, although 4o brick-Work may be used.

a is an annular hopper, which, togetherwith the bell b, forms the fuel-charging apparatus. When the bell b is raised, which can be done by means of a forked lever and connectinglinks or other suitable devices, the fuel drops into the annular space c surrounding the bellshaped gas-hood d, which is supported by brackets secured to the outer shell, s, or otherwise suspended. The fuel is thus fed from all sides .Every vertical cross-section of my producer to the conical dead-plate f, and to the conical 5o grate or fire-pot g, which, as shown in the drawings, consists of perforated castings, leaving a large opening in the center, through which ashes and clinkers pass into the ashpit.

The space outside of the grate or fire-pot is inclosed by iron walls, with doors k for the removal of ashes and clinkers. are blastpipes for leading the blast into this space. When the producer is to be operated with natural draftthe a-sh-pit is left open. h h 71, h are holes for stirring or poking the fire. They are provided with doors or dampers of the usual construction. i

In this producer the fuel-feed is a peripherical feedthat is to say, the fuel passes from the periphery or from all sides along the outer walls toward the center, while the hot gases travel upward toward the central gas-tlue d.

My producer', with its inclined conical deadplate and its inclined conical grate, differs essentially from the Siemens producer in having no side walls, such as the side walls ofthe Siemens producer, which in the Siemens producer are separate and distinct from the deadplate and inclined grate, and are necessary to complete the fuel-chamber, and which, being in direct contact with the hot fuel and gases, cause clinkers to adhere and form arches.

8o passes through the inclined dead-plate and grate, and all the horizontal sections through the dead-plate, aswell as through the grate, are practically closed figures, beingin the present example circles.

My producer may be round or square or of any other shape, and may be constructed of any material used in the construction of furnaces.

The central gas-hood, instead of being constructed of castiron, may be of tire brick, particularly when a square fire-place is used, as shown in Fig. 4, where d is the gas-hood formed by arches, from the outer edges of which the fuel slopes toward the center.

Various charging arrangements may be used instead of the bell. rEhe space c may also be branched into two or more funnels contracted at the top, each with a separate charging apparatus-as, for in stance, the hoppera and slide b in Fig. 4. With some fuels the upper part above c may be left open.

The central gas-hood, d, may also be a dome or dome-like casting, with one or more flues, m, carrying the gas out through the sides to a receiver, fit, as shown in Fig. 3, where the fuel is charged through `an apparatus, a b, located centrally above the gas-dome.

The grate maybe formed of gratebars of any construction, such as step-grates or partly step-grates and partly perforated plates, as in dicated in Fig. 3, or the grate of the producer known as the f Tessi Gas-Producer l may be used, as shown in Fig. 4, applied to a square producer where the dead -plate f is built of brick-work.

Where the locality admits of it, the funnelshaped bottom of the ash-pit` may have a vertical tube, 0, Fig. 3, projecting downward into the water-vessel p, the lower end being beneath the surface of the water. rlhe tube ois kept full of ashes and clinkers, part of which arefrom time to time removed through the water-pan, the water preventing` the blast from passingout through the tube, as shown in Fig. 3.

Thelower part of theproducer-that is to say, the ash-pit and the blast-chamber-may also be sufficiently enlarged to admit a man and give him room enough to do all the work necessary at the lire-pot and ash-pit, the enlarged space having double doors for ingress and egress. By this arrangement the fire can be attended to without the necessity of shutting off the blast.

Prior to my invention central gas-conduits have been used in blast-furnaces; butin such they do not in the lower part of the furnace, at or near the zone of incandescence, drive the current of hot gases away from the walls toward the center, so as to prevent the adhesion of clinkers to the walls, which results are secured by my construction and arrangement.

Central gas-conduits have also been used in apparatus for manufacturingilluminating-gas5 but in such the conduits were not open at the bottom, and consequently could not drive the current of hot gas toward the center.

What I claim as new, and desire to secure by Letters Patent, is-

1. rlhe combination, in a gas-producer, of a central gas-hood, open at the bottom and extending close to the zone of incandescence, an inclined dead-plate, the horizontal sections of which are closed figures, an inclined fire-pot grate, the horizontal sections of which are closed figures, and a central discharge lfor ashes and clinkers, substantially as and for the purpose specified.

2. In a gaspioducer, the combination,l with the dead-plate, of an inclined funnel-shaped re-grate, which is arranged below and in continuation with said dead-plate, substantially as described, whereby said grate in the zone of incandescence takes the place of side walls, as set forth.

In testimony that I claim the foregoing I have hereunto set my hand and seal this 16th day of October, 1879.

A. FABER DU FAUR.

Witnesses:

W. HAUFF, E. F. KASTENHUBER.

lL. s] 

